HiRO presenters are working at the frequency of 2.4GHz. However, there are other devices that work within this frequency as well, such as cellular phone, cordless phone, or even microwave oven. Therefore, it is possible that the presenter's link with USB transmitter may be interfererd by those neighbors.
The sympton of broken link between presenter and USB transmitter is that all the buttons & directional pad are not functional. However, the laser pointer should still work because this feature does not require any communication with USB transmitter. Therefore, please follow the steps below:
(1) Please refer to the following URL to see if the laser pointer is working or not.
How to activate/deactivate the laser pointer
If the laser pointer is working, please go to the 2nd step. Otherwise, please contact us at email@example.com
(2)Please refer to the following URL to re-establish the link:
How to re-establsih the link between presenter & USB transmitter